the real question is how much air has to pass over the truck to create X lbs of downforce. you can put a fan on a truck and create down force but its minimal.....with that being said the speed will create downforce so if you slow to take a corner how much force are you really creating? Its like putting a wing on a honda to run the 1/4 mile......they need weight in the front but they put it on the trunk. Is it gonna help in the 1/4? ..... it might a 120mph but they spin and don't run that fast. So tailgate up or down or off won't make much difference on a road course unless its for weightloss.....
Man i should have been a nuclear physisist haha! But def. not a spelling bee champ!

 

I don't know if completely agree with that. Even at 40 mph, in a turn, a wing is actually functional if set up right. The problem as you said is with hondas, they are front wheel drive. I'm a big fan of the show TopGear, and they were recently testing a car, I think it was a Koenigsegg. They were having a hard time keeping the backend planted in corners. They took it back, added a small wing, and it was then planted. Not sure if a tailgate would have enought of an effect however. But it is proven, that whether it be a wing on the back, or a splitter on the front, it actually does create a lot of downforce at less than excessive speeds.

 

i was just bustin ya ***** haha! a Car like the koenigsegg is one of a kind.... that car was built to go in speed in excess of 200 mph... the few little things like a small wing or a front lip wing or anything like that will help that car...esp. if you are making turns at 80-100mph where a truck would be taking the same curve at most likely half the speed. Im not a road racer but many of the truck guys i talk to about this rely heavily on sway bars and shock or suspension set up. But to say that the gate down wouldn't help...????? mythbusters haha!

 

like said above
with the tail gate up the air that flows over the cab and hits the tail gate gets caught in the "bed area" and tries to rise,(continuously spinning from TG to cab to up then forced back to TG) creating a odd shapped O of air

but the air that is still flowing over the truck will not let it escape so it creates at vacume(vortex, or what ever its called).

this vacume (i think thats what it is called) will let the air travel over it and in point...over the tail gate.......so from the top of the truck back works just like a car, with the tailgate up.

tail gate down, will not work.

 

I know you were busting on me, I'm probably taking this thing kinda far anyway... Maybe if we set up the tailgate so it angled up some??? Can we get a mod to close this thread before I go off of the deep end?

 

haha we are way to bored haha! so how much wood could a wood chuck chuck, if a wood chuck could chuck wood? huh?
how many licks does it take to get to the center of a tootsie pop?

 

a wood chuck would chuck 3 chucks of wood but a wood chuck can't chuck wood.....
for the tootsie pop .... http://www.tootsie.com/gal_licks.php

 

Solid...